"I just stepped out of the park and was just about to come up the hill when two dogs ran across the road and one attacked me," she said.

"The big black dog came up to the front and grabbed my leg and first of all I tried to kick it off, shake it loose with my leg but it wouldn't let go."

Ms Braurer said she noticed the two dogs earlier. The black one she believed was similar to a pit bull terrier with white markings and the other was a white puppy.

"I could see a man sitting on a picnic table and he had two dogs with him and the two dogs went down to bottom of the verge and he called out to the dogs to come back to him so I knew they were his," she said.

"Why didn't he come to help me (when they attacked)? I was screaming at the top of my lungs for help and he did nothing."

Donna Brauer was attacked by a dog when she was walking near St Andrew's Hospital. She has had one operations and will require further surgery. January 2017Bev Lacey

Ms Braurer said during the attack a woman in a white ute pulled over, told her to "get in" and drove her to the hospital.

"I was just fighting off the dog, not thinking but when I saw the blood flying everywhere, I knew it could have killed me and I was absolutely terrified," she said.

"I really thought I would have died if that dog got me down to the ground."

Toowoomba Police Senior Constable Alex Singleton said the black dog was responsible for three separate attacks that day.

"We're after any witnesses," he said.

"It's nice to see how people will go out of their way to help others despite the danger."

St Andrews Toowoomba Hospital CEO Ray Fairweather said the hospital was doing everything it could to assist in Ms Brauer's recovery.

"The unit, where the patient was hospitalised, encourages physical activity and normal daily routines. The patient was a regular walker and it's extremely unfortunate she was in this situation," he said.

"We've offered all the care available to assist her injuries including putting her in theatre straight away and post-surgery care."